Getting error after installing a custom app

I’m getting this error when opening my custom app . please help

Traceback (most recent call last):
File “/home/ommiforge/frappe-bench/apps/frappe/frappe/app.py”, line 57, in application
response = frappe.handler.handle()
File “/home/ommiforge/frappe-bench/apps/frappe/frappe/handler.py”, line 19, in handle
execute_cmd(cmd)
File “/home/ommiforge/frappe-bench/apps/frappe/frappe/handler.py”, line 36, in execute_cmd
ret = frappe.call(method, **frappe.form_dict)
File “/home/ommiforge/frappe-bench/apps/frappe/frappe/init.py”, line 855, in call
return fn(*args, **newargs)
TypeError: get() takes exactly 1 argument (0 given)

Is there anyone who could help me to resolve this , please ?

I wonder , no one is willing to help me ?

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